diff options
Diffstat (limited to 'arch/xtensa/include/asm/system.h')
| -rw-r--r-- | arch/xtensa/include/asm/system.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/system.h b/arch/xtensa/include/asm/system.h new file mode 100644 index 0000000000..5b710089c1 --- /dev/null +++ b/arch/xtensa/include/asm/system.h @@ -0,0 +1,27 @@ +/* + * Copyright (C) 2016 Cadence Design Systems Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _XTENSA_SYSTEM_H +#define _XTENSA_SYSTEM_H + +#include <asm/arch/core.h> + +#if XCHAL_HAVE_INTERRUPTS +#define local_irq_save(flags) \ + __asm__ __volatile__ ("rsil %0, %1" \ + : "=a"(flags) \ + : "I"(XCHAL_EXCM_LEVEL) \ + : "memory") +#define local_irq_restore(flags) \ + __asm__ __volatile__ ("wsr %0, ps\n\t" \ + "rsync" \ + :: "a"(flags) : "memory") +#else +#define local_irq_save(flags) ((void)(flags)) +#define local_irq_restore(flags) ((void)(flags)) +#endif + +#endif |